The elves had entered a land like an open grave-an act of fortitude or folly?

Naya Sojourners

When you cycle Naya Sojourners or it dies, you may put a +1/+1 counter on target creature.
Cycling {2}{G} ({2}{G}, Discard this card: Draw a card.)

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The elves had entered a land like an open grave—an act of fortitude or folly?

Alara Reborn

When you cycle Naya Sojourners or it's put into a graveyard from play, you may put a +1/+1 counter on target creature.
Cycling {2}{G} ({2}{G}, Discard this card: Draw a card.)

If you cycle this card, the cycling ability goes on the stack, then the triggered ability goes on the stack on top of it. The triggered ability will resolve before you draw a card from the cycling ability.

The cycling ability and the triggered ability are separate. If the triggered ability doesn't resolve (due to being countered with Stifle, for example, or if all its targets have become illegal), the cycling ability will still resolve and you'll draw a card.

The triggered ability acts as a cycle-triggered ability or as a leaves-the-battlefield ability, as appropriate. The player who controls the triggered ability is the player who cycled the Sojourner, or the player who last controlled the Sojourner on the battlefield.

You can cycle this card even if there are no targets for the triggered ability. That's because the cycling ability itself has no targets.